diff --git a/src/CascadeClassifierWrap.cc b/src/CascadeClassifierWrap.cc
index 6a5c095..57a8e7f 100755
--- a/src/CascadeClassifierWrap.cc
+++ b/src/CascadeClassifierWrap.cc
@@ -112,7 +112,7 @@ CascadeClassifierWrap::DetectMultiScale(const v8::Arguments& args){
 //  eio_custom(EIO_DetectMultiScale, EIO_PRI_DEFAULT, EIO_AfterDetectMultiScale, baton);
 //  ev_ref(EV_DEFAULT_UC);
 
-  uv_queue_work(uv_default_loop(), &baton->request, AsyncDetectMultiScale, AfterAsyncDetectMultiScale);
+  uv_queue_work(uv_default_loop(), &baton->request, AsyncDetectMultiScale,  (uv_after_work_cb)AfterAsyncDetectMultiScale);
 
   return Undefined();
 
diff --git a/src/CascadeClassifierWrap.h b/src/CascadeClassifierWrap.h
index e4c7cf0..fa42309 100755
--- a/src/CascadeClassifierWrap.h
+++ b/src/CascadeClassifierWrap.h
@@ -13,7 +13,7 @@ class CascadeClassifierWrap: public node::ObjectWrap {
     //static Handle<Value> LoadHaarClassifierCascade(const v8::Arguments&);
 
 	static Handle<Value> DetectMultiScale(const v8::Arguments&);
-	static void EIO_DetectMultiScale(eio_req *req);
-	static int EIO_AfterDetectMultiScale(eio_req *req);
+	static void EIO_DetectMultiScale(uv_work_t *req);
+	static int EIO_AfterDetectMultiScale(uv_work_t *req);
 
 };
diff --git a/src/Matrix.cc b/src/Matrix.cc
index a0f1684..e9ee76b 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -369,7 +369,7 @@ Matrix::ToBufferAsync(const v8::Arguments& args){
   baton->request.data = baton;
   baton->sleep_for = 1;
 
-  uv_queue_work(uv_default_loop(), &baton->request, AsyncToBufferAsync, AfterAsyncToBufferAsync);
+  uv_queue_work(uv_default_loop(), &baton->request, AsyncToBufferAsync, (uv_after_work_cb)AfterAsyncToBufferAsync);
 
   return Undefined();
 }
diff --git a/src/VideoCaptureWrap.cc b/src/VideoCaptureWrap.cc
index 0087037..94c84cc 100755
--- a/src/VideoCaptureWrap.cc
+++ b/src/VideoCaptureWrap.cc
@@ -92,7 +92,7 @@ VideoCaptureWrap::Read(const Arguments &args) {
 	baton->im = new Matrix();
 	baton->request.data = baton;
 
-	uv_queue_work(uv_default_loop(), &baton->request, AsyncRead, AfterAsyncRead);
+	uv_queue_work(uv_default_loop(), &baton->request, AsyncRead,  (uv_after_work_cb)AfterAsyncRead);
 	return Undefined();
 
 }